Sophora secundiflora - Distribution and Occurence; Value and Use; Characteristics; Fire Ecology www.fs.fed.us/database/feis/plants/tree/sopsec
Texas Mountain Laurel - Description and image of Sophora secundiflora. hiddenvegas.com/arboretum/potm/sophora_secundiflora.html
Toromiro Management Group - Dedicated to the conservation of Sophora toromiro, native to Easter Island but now extinct in the wild. www.rbgkew.org.uk/conservation/cpdu/Toromiro/toro_t1.html
